Average cost the dewitt company has found that the rate of

Question

Average cost the DeWitt Company has found that the rate of change of its average cost for a product is

C‾(x) = (1/4)-(100/(x)²)

where x is the number of units and cost is in dollars. The average cost of producing 20 units is $40.00.

(a) Find the average cost function for the product.

(b) Find the average cost of 100 units of the product.